Is it possible to [Index_check]=checklimits(results, 1) output Index_check = 1
or 0 when there is an output of constrains or not out of limits?
20 вересня 2023, 16:45:03, від "Ігор Ткач" <ig0r-1...@ukr.net>:
Dear all,
Question. how do I find the constraint. which removes my cost calculation when
calculating the runopf cost?
For case30, I study the dependence of cost when adjusting the voltage of
generators.
For example, I change the voltage of the 4th generator:
cost=function('VM') == cost=function(mpc10.gen(4,6))
The skript runopf is closed and this dependency cannot be seen.
Test network case30 has an optimal value runopf() of f= 576.8923
My first calculation.
My changes to the input data - pasted the results :
mpc10.gen(:,6)=resopf.gen(:,6) - 'VM'
mpc10.gen(4,6)=resopf.gen(4,6)-0.025 - new ' VM' 4-th gen
rez10=runopf(mpc10)
f=576.8923 - the cost hasn't changed since we went down to the minimum.
O'Key, runopf found a minimum calculated with the constraints.
Next I'll show that in my example cost smaller cost=576.661 -
I'm assuming that my initial conditions went out of bounds and were discarded
I am assuming that my initial conditions (-0.025 p.u.) give the best cost
576.661 , but go beyond the some constraints. My cost was rejected by runopf.
I need to make sure of this
Dear all,
My calculation.
I calculated runopf.
I took the results runopf for PG and VG to new_mpc and calculated the
runpf(new_mpc).
After the runpf calculation, all datasets matched with runopf , in particular
the cost.
Сosts runpf are runopf the same 576.8923. My runpf option works correctly.
Then I slightly reduce the voltage on the 4-th generator "-0.025 p.u. " and
calculate the cost by runpf.
I got less, better cost f=576.661
I emphasize, the active power of generators 2-6 and the voltage on the buses
of generators 1-6 are the same for runpf and runopf, there is only an addition
of 0.01 voltage on generator 4.
I emphasize that for the case of the test runopf and my runpf, the calculation
results in the active power of generators 2-6 and the voltage on the buses of
generators 1-6 are the same, there is only an addition of -0.025 voltage on
generator 4.( see line 42 in the attached script. )
I have checked that the voltages on all nodes are within the constrains range.
I've attached a program to tesе.
Question. how do I find the constraint. which removes my cost calculation when
calculating the runopf cost?
Igor.
